body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
}
.header {
    background-color: #6baed6;
    color: white;
    padding: 10px;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    line-height:  1px;
    text-align: center;
    lign-items: center;
    justify-content: space-between; //header容器中元素整体所在位置
}
.textH2{
    background-color: #6baed6;
    color: white;
    padding: 10px;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    text-align: center;
    lign-items: center;
    justify-content: left; //header容器中元素整体所在位置
}
.headerPlaceholder{
    width: 600px;

}
.logo {
    width: 260px; /* 根据需要调整logo大小 */
    height: 55px;
    margin-left: 1px;
}
.container {
    display: flex;
    flex: 1; /* 占满剩余空间 */
    height: calc(100vh - 87px); /* 减去 header 的高度 */
}
.sidebar {
    width: 200px;
    background-color: #333;
    color: white;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* 左对齐 */
}
.sidebar-item {
    margin-bottom: 20px;
    cursor: pointer;
    font-size: 18px;
}
.main-content {
    flex-grow: 1;
    padding: 20px;
    box-sizing: border-box;
    background-color: #f5f5f5; /* 背景颜色 */
}

/*左侧导航栏设置*/
.sidebar-item:hover {
    background-color: #f1eaea; /* 当前模块的背景色 */
    color: #151111; /* 文字颜色 */
}
.active-module {
    background-color: #f1eaea; /* 当前模块的背景色 */
    color: #151111; /* 文字颜色 */
    border-radius: 4px; /* 圆角 */
    padding: 0px 8px 0px 0px;
}